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+// Exa 8.3

+clc;

+clear;

+close;

+format('v',6)

+// Given data

+V_DD = 20;// inV

+I_DSS = 8;// in mA

+I_DSS = I_DSS * 10^-3;// in mA

+V_P = -6;// in V

+R_G = 1;// in Mohm

+R_G = R_G * 10^6;// in ohm

+R_S = 1;// in k ohm

+R_S = R_S * 10^3;// in ohm

+r_d = 50;// in k ohm

+r_d = r_d * 10^3;// in ohm

+V_GS = -2.6;// in V

+I_D = 2.6;// in mA

+I_D = I_D * 10^-3;// in A

+g_mo = (2*I_DSS)/(abs(V_P));// in S

+g_m = g_mo*(1 - (V_GS/V_P));// in S

+Zi = R_G;// in ohm

+Zi= Zi*10^-6;// in M ohm

+disp(Zi,"The value of Zi in M ohm is");

+Zo = R_S*1/g_m/(R_S+1/g_m);

+disp(Zo,"The value of Zo is");

+Av = g_m*R_S/(1 + (g_m*R_S));

+disp(Av,"The value of Av is");